Portion of a tool housing



FIG. 1 is a right side view of the portion of a tool housing of the present invention;

FIG. 2 is a left side view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view of the present portion of a tool housing; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a portion of a tool housing, as shown and described. 